Update comments
Relocate our monkey-patch to SDL_LIBRARY to dependencies section

	* I also remove linking "SDLmain" on the examples as it appears to
not be necessary
Introduce copy rule for sndfile cmake script in searchable find_package

	* Update extlibs/osx/bins with new framework
	* Remove cmake/modules/FindLibSndFile.cmake
Introduce utility helper shell script for preparation of sndfile bundle
Install nomlib-config cmake script in searchable find_package path

	This allows us to stop including a private copy of the script in
each project that uses nomlib. Yay!